Chassis S7009999 & Earlier

x�BElectrically Operated Boot Lid Release:

WIRING DIAGRAM

Central Locking System - Component Location:

COMPONENT LOCATION

22A Main fuse board in the dashboard.
188 Motor, central locking system, in the tailgate.
289 Anti-theft alarm control module under the left-hand seat.
388 Switch, electrically operated tailgate release, on the driver's door.
565 TSAS control module in the luggage compartment on the left-hand side.

2-pin connector
H2-1 On LH side of tailgate.

3-pin connector
H3-15 On LH side of tailgate.

4-pin connector
H4-5 In the luggage compartment behind the left-hand wheel housing.

26-pin connectors
H26-1 Connector, driver's door, LHD
H26-3 Connector, driver's door, RHD
33-pin connector
H33-1 Grey connector on the bracket below the left-hand A pillar.

Grounding Points
G3 Grounding point, luggage compartment, below left-hand rear light cluster.
G14 Grounding point, left-hand front seat member, under the seat.
G24 Grounding point, right-hand front seat member, under the seat.
G35 Grounding point, dashboard, behind the connector bracket below the left-hand A pillar.

DESCRIPTION OF OPERATION
The tailgate can be opened either by means of switch 388 on the driver's door or by using the key. When the tailgate is opened by means of switch 388, motor 188 is supplied with current (+30 circuit) from the switch via fuse 25.

A spring in motor 188 ensures that it always returns to the locked position.

To avoid bouncing of the motor on its return, it is braked by both sides of it being connected to ground.

Cabriolet
On the Cabriolet, opening of the boot lid is controlled by the top stack actuation system control module.

Unlocking can take place only when:
^ the hood is completely raised (up)
^ the hood is completely lowered (down) and the ignition switch is in the drive position.

On cars having chassis number S7010001 and later that are equipped with an anti-theft alarm, the boot lid cannot be opened by the remote control when the hood is down.

FAULTS DIAGNOSIS HINTS
1. Check that fuse 25 is intact and supplied with current.
2. Check that current is supplied to pin 2 of switch 388.
3. Check that current is supplied to pin 2 of the motor when switch 388 is pressed.
4. Check the connectors, wiring harness and ground connections.